/*
 *
 * Copyright (c) 2022 The Raptor Authors. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#ifndef RAPTOR_LITE_IMPL_CLIENT_H_
#define RAPTOR_LITE_IMPL_CLIENT_H_

#include <stddef.h>
#include <stdint.h>
#include <string>

#include "raptor-lite/impl/property.h"
#include "raptor-lite/utils/slice.h"
#include "raptor-lite/utils/status.h"

//
// simple client impl
//
namespace raptor {

enum class NetEvent : int { Null, ConnectFailed, ConnectSuccess, Closed };

class ClientHandler {
public:
    virtual ~ClientHandler() {}
    virtual void OnNetEvent(NetEvent ev) = 0;
    virtual int MessageLength(uint8_t *data, size_t size) = 0;
    virtual void OnMessage(const Slice &s) = 0;
};

class Client {
public:
    virtual ~Client() {}
    virtual raptor_error Start() = 0;
    virtual void Shutdown() = 0;
    virtual raptor_error Connect(const std::string &addr) = 0;
    virtual bool SendMsg(const Slice &msg) = 0;
    virtual bool SendMsg(const char *buff, uint32_t len) = 0;
    virtual void Disconnect() = 0;
    virtual bool IsConnected() = 0;
};

/*
 * @param p property values:
 *   1. kClientHandler         (required)
 */
raptor_error CreateClient(const Property &p, Client **out);
void DestroyClient(Client *);
} // namespace raptor

#endif // RAPTOR_LITE_IMPL_CLIENT_H_
